package com.pl.grainmall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.pl.common.constant.ProductConstant;
import com.pl.common.to.SkuHasStockVo;
import com.pl.common.to.SkuReductionTo;
import com.pl.common.to.SpuBoundTo;
import com.pl.common.to.es.SkuEsModel;
import com.pl.common.utils.R;
import com.pl.grainmall.product.entity.*;
import com.pl.grainmall.product.feign.CouponFeignService;
import com.pl.grainmall.product.feign.SearchFeignService;
import com.pl.grainmall.product.feign.WareFeignService;
import com.pl.grainmall.product.service.*;
import com.pl.grainmall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.pl.common.utils.PageUtils;
import com.pl.common.utils.Query;

import com.pl.grainmall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );


        return new PageUtils(page);
    }

    /**
     * //TODO 高级部分在完善
     *
     * @param vo
     */
    //Seata  AT 分布式事务
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1.保存Spu基本信息  pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2.保存 Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(";", decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);
        //3.保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(), images);

        //4.保存spu的规格参数  pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);


        //5.保存sku的积分信息  gulimall_sms  -跨库-> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        //6.保存当前spu对应的sku的所有信息
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                /**
                 *     private String skuName;
                 *     private BigDecimal price;
                 *     private String skuTitle;
                 *     private String skuSubtitle;
                 */
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //6.1) sku的基本信息  pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);
                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true就是需要,返回false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //6.2) 保存sku的图片信息  pms_sku_images
                skuImagesService.saveBatch(imagesEntities);
                // TODO 没有图片路径的,无需保存


                //6.3) sku的销售属性信息  pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity valueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, valueEntity);
                    valueEntity.setSkuId(skuId);
                    return valueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                //6.4) sku的优惠和满减信息  gulimall_sms  -跨库->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku积分信息失败");
                    }
                }

            });

        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    /**
     * spu检索
     *
     * @param params
     * @return
     */
    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        /**
         * 检索条件
         * status:
         * key:
         * brandId: 0
         * catelogId: 0
         */
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }


        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {
        //1 查出当前spuId对应的所有sku信息,品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4.查询当前sku的所有可以用来被检索的规格属性,
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);
        Set<Long> idSet = new HashSet<>(searchAttrIds);


        List<SkuEsModel.Attr> attrList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attr attrs = new SkuEsModel.Attr();
            BeanUtils.copyProperties(item, attrs);
            return attrs;
        }).collect(Collectors.toList());
        //TODO 1.发送远程调用库存系统查询是否有库存
        Map<Long, Boolean> stockMap=null;
        try {
            R skusHasStock = wareFeignService.getSkusHasStock(skuIdList);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            stockMap = skusHasStock.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));

        }catch (Exception e){
            throw new RuntimeException("库存服务查询出现异常: ");
//            log.error("库存服务查询出现异常: ",e.getMessage());
        }

        //2 封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);

            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            //是否有库存  设置库存信息
            if (finalStockMap ==null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2.热度评分 0
            esModel.setHotScore(0L);

            //TODO 3.查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandImg(brand.getLogo());
            esModel.setBrandName(brand.getName());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());

            //设置检索属性
            esModel.setAttrs(attrList);

            return esModel;
        }).collect(Collectors.toList());

        //TODO 5.将数据发送给 ES 进行检索;grainmall-search
        R r = searchFeignService.productStatusUp(upProducts);
        //Load balancer does not have available server for client: grainmall-search
        if (r.getCode()==0){
            //远程调用成功
            // TODO 6.修改当前spu的状态
            this.baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
         }else {
            //远程调用失败
            //TODO 7.重复调用?接口幂等性;重试机制
            //Feign的调用流程
            /**
             * 1.构造请求数据,将对象转为json;
             *
             * 2.发送请求进行执行(执行成功会解码响应数据)
             *
             * 3.执行请求会有重试机制
             *
             */
        }


    }

    @Override
    public SpuInfoVo getSpuInfoBySkuId(Long skuId) {
        SpuInfoVo spuInfoVo = new SpuInfoVo();
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);
        //属性拷贝
        BeanUtils.copyProperties(spuInfoEntity,spuInfoVo);

        Long brandId = spuInfoEntity.getBrandId();
        //品牌名
        BrandEntity brandEntity = brandService.getById(brandId);
        String brandName = brandEntity.getName();
        spuInfoVo.setBrandName(brandName);

        return spuInfoVo;
    }


}